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Pt-Ni and Pt-Ni-Cu Alloy Nano-Octahedra: Shape-Controlled Synthesis and Electrocatalytic Performance Evaluation.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Pt-Ni and Pt-Ni-Cu Alloy Nano-Octahedra: Shape-Controlled Synthesis and Electrocatalytic Performance Evaluation./
作者:	Peng, Yang.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2021,
面頁冊數:	78 p.
附註:	Source: Masters Abstracts International, Volume: 83-02.
Contained By:	Masters Abstracts International83-02.
標題:	Chemistry. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28542073
ISBN:	9798534663532

Pt-Ni and Pt-Ni-Cu Alloy Nano-Octahedra: Shape-Controlled Synthesis and Electrocatalytic Performance Evaluation.
Peng, Yang.

Pt-Ni and Pt-Ni-Cu Alloy Nano-Octahedra: Shape-Controlled Synthesis and Electrocatalytic Performance Evaluation. - Ann Arbor : ProQuest Dissertations & Theses, 2021 - 78 p.

Source: Masters Abstracts International, Volume: 83-02.

Thesis (M.S.)--State University of New York at Binghamton, 2021.

This item must not be sold to any third party vendors.

Platinum-based alloys are known as effective catalysts towards oxygen reduction reaction (ORR). It has been demonstrated that {111} surfaces of Pt3Ni enhance ORR catalytic activity. To apply this feature into practical nanocatalysts towards the improvement of ORR performance with minimal cost, a wet-chemical synthesis approach to prepare Pt-Ni binary and Pt-Ni-Cu ternary octahedral nanoalloys of which all the surfaces can be taken as {111} facets was developed. Preliminary characterization data show that the synthesis of Pt-Ni and Pt-Ni-Cu nano-octahedra is repeatable, and the elements of platinum and nickel distribute evenly in the octahedral nanocrystals. The surface structure of the as-prepared nano-octahedra was further manipulated by CO-annealing and acid etching. ORR performance after these surface treatments has been investigated. Results suggest that the Pt-Ni and Pt-Ni-Cu octahedra exhibit higher ORR activity compared with the commercial Pt/C catalysts. The surface treatments on the catalysts have also impacted the mass activity and specific activity.

ISBN: 9798534663532Subjects--Topical Terms:

516420
Chemistry.
Subjects--Index Terms:

Wet synthesis

Pt-Ni and Pt-Ni-Cu Alloy Nano-Octahedra: Shape-Controlled Synthesis and Electrocatalytic Performance Evaluation.
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500 $a Source: Masters Abstracts International, Volume: 83-02.
500 $a Advisor: Fang, Jiye.
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506 $a This item must not be sold to any third party vendors.
520 $a Platinum-based alloys are known as effective catalysts towards oxygen reduction reaction (ORR). It has been demonstrated that {111} surfaces of Pt3Ni enhance ORR catalytic activity. To apply this feature into practical nanocatalysts towards the improvement of ORR performance with minimal cost, a wet-chemical synthesis approach to prepare Pt-Ni binary and Pt-Ni-Cu ternary octahedral nanoalloys of which all the surfaces can be taken as {111} facets was developed. Preliminary characterization data show that the synthesis of Pt-Ni and Pt-Ni-Cu nano-octahedra is repeatable, and the elements of platinum and nickel distribute evenly in the octahedral nanocrystals. The surface structure of the as-prepared nano-octahedra was further manipulated by CO-annealing and acid etching. ORR performance after these surface treatments has been investigated. Results suggest that the Pt-Ni and Pt-Ni-Cu octahedra exhibit higher ORR activity compared with the commercial Pt/C catalysts. The surface treatments on the catalysts have also impacted the mass activity and specific activity.
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650 4 $a Acids. $3 922327
650 4 $a Hydrocarbons. $3 697428
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650 4 $a Carbon. $3 604057
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